Well, if someone holds a belief that another person, or even billions of other people throughout history and into the future, are on a path towards some kind of eternal torment and torture, but that they know how to avoid it, I should hope that they make some effort as minor as wearing certain clothing which publicizes their views. If you personally held to the view that you had knowledge that another person that you regularly interact with is going to suffer for all of time, unless they make some particular change in this life of theirs, wouldn't you make an effort to get them to make that change, for their own benefit at least? Publicizing that you hold this knowledge (or at least that you think you hold it) by wearing some specific jewelry or clothing whenever in their presence would actually be doing them a favor, but you would instead be harming them by NOT wearing it.
For people who really do believe in a literal heaven and hell, I find it disturbing that they do not make more of an effort to steer other people towards heaven and away from hell. Since I think neither of those are real in the first place, I am indirectly glad for this situation, but still I do think it speaks poorly of the morality of people who do believe in such fates, and then do little to nothing about it to try and help others. Religion is just so messed up in so many ways.
Brian